"This won't help you, as my KR1 buffets at 62 mph.(53 kts). Haven't taken it into full stall yet. That was with retracts down. Plane is pretty much to plans, tho heavy (785 lbs) as flown. "
Hi Kevin On the contrary - the data that you present is extremely useful indeed - thank you! It is unfortunate for me in my dialogue with the Authority of course, but your figures are very similar to that collected for my aeroplane in 1978. I know that the test airfield was 1335' elevation, so a cautious pilot would probably climb to at least 5000'amsl before stalling in a 'new' aeroplane. This means that the finite wing on my aeroplane was working at a CLmax of about 1.4. I will assume that your aircraft does not have flaps fitted, that it has an external balanced static port and that your data was also collected at 5000' altitude. Colin Hales kindly passed me some KR-2 stalling information from the UK which indicated that the stall occurred 4 mph slower than the onset of the initial buffet at MAUW without flaps. Using Colin's information, we can make an assumption that your aeroplane will stall at 58 mph, so a quick 'fag packet' calculation reveals that your wing is producing a CLmax of about 1.7. I look at this from the point of view that I now have twice as many data points than I did this morning - again, thank you very much! Kiwi
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